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Puzzles (3 cohencoins award for each match):

Puzzle gTEQX: 635

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/mw2qpanQ"] [Date "2025.12.30"] [White "Edward3"] [Black "Walker"] [Result "0-1"] [UTCDate "2025.12.30"] [UTCTime "15:23:15"] [WhiteElo "1309"] [BlackElo "1541"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+3"] [WhiteTitle "GM"] [BlackTitle "🏠"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C79"] [Opening "Ruy Lopez: Morphy Defense, Steinitz Deferred"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 { C79 Ruy Lopez: Morphy Defense, Steinitz Deferred } 6. Re1 Bd7 7. Nc3 Nd4?! { (0.45 → 1.33) Inaccuracy. Be7 was best. } (7... Be7 8. Bxc6 Bxc6 9. d4 exd4 10. Nxd4 O-O 11. Nf5 Re8 12. Bg5 Bf8 13. f3 Bd7 14. Ne3) 8. Nxd4 exd4 9. Bxd7+ Qxd7 10. Nd5?! { (1.15 → 0.29) Inaccuracy. Ne2 was best. } (10. Ne2 c5 11. c3 Be7 12. Ng3 dxc3 13. dxc3 O-O-O 14. Qf3 g6 15. Bg5 Qe6 16. Bf4 Nd7) 10... Be7?! { (0.29 → 0.94) Inaccuracy. Nxd5 was best. } (10... Nxd5 11. exd5+) 11. Nxe7 Qxe7 12. d3 h6 13. Bd2 O-O 14. b3 b5 15. Bc1?! { (0.99 → 0.37) Inaccuracy. f4 was best. } (15. f4 c5 16. Qf3 Nd7 17. Re2 a5 18. g4 Rfc8 19. Rf1 a4 20. Rg2 axb3 21. axb3 Ra2) 15... Rae8 16. Bb2?! { (0.81 → 0.19) Inaccuracy. Bd2 was best. } (16. Bd2 Nd7) 16... c5 17. a3?! { (0.54 → 0.00) Inaccuracy. c3 was best. } (17. c3 dxc3) 17... Qe5 18. g3?! { (0.36 → -0.37) Inaccuracy. Bc1 was best. } (18. Bc1 Qe6 19. Bf4 Kh7 20. h3 d5 21. e5 Ng8 22. Bd2 f5 23. f4 Ne7 24. Qh5 Ng8) 18... Qg5 19. Bc1 Qg4 20. Qxg4 Nxg4 21. h3 Nf6?! { (0.00 → 0.52) Inaccuracy. Ne5 was best. } (21... Ne5 22. Kg2 f6 23. Bd2 Nc6 24. f4 Kf7 25. g4 h5 26. Kg3 Rh8 27. f5 Ne5 28. Bf4) 22. Bb2?! { (0.52 → -0.10) Inaccuracy. Bf4 was best. } (22. Bf4 Re6 23. Bxd6 Rxd6 24. e5 Re6 25. exf6 gxf6 26. Kg2 Rfe8 27. Rxe6 fxe6 28. g4 Kf7) 22... a5 23. c3 dxc3 24. Bxc3 d5?! { (0.25 → 0.87) Inaccuracy. Ra8 was best. } (24... Ra8 25. Bxf6 gxf6 26. Rab1 Rfe8 27. Kf1 Rad8 28. Re3 Kg7 29. Ke2 Rb8 30. Rf3 d5 31. Rf5) 25. exd5 Nxd5?! { (0.86 → 1.82) Inaccuracy. Rd8 was best. } (25... Rd8 26. Bxa5 Rxd5 27. Red1 b4 28. d4 Ra8 29. axb4 cxb4 30. Bxb4 Rb8 31. Be7 Rxb3 32. Bxf6) 26. Rxe8?! { (1.82 → 0.92) Inaccuracy. Bxa5 was best. } (26. Bxa5 Ra8) 26... Rxe8 27. Bxa5 Ra8 28. Be1 b4?? { (0.68 → 2.80) Blunder. Nb4 was best. } (28... Nb4) 29. Kf1?? { (2.80 → -0.10) Blunder. a4 was best. } (29. a4 Rd8) 29... Rxa3 30. Rc1 Rxb3 31. Rxc5 Rxd3 32. Rc8+ Kh7 33. Kg2?? { (-0.30 → -3.17) Blunder. Ke2 was best. } (33. Ke2) 33... b3?! { (-3.17 → -2.09) Inaccuracy. Rd1 was best. } (33... Rd1) 34. Rb8 Nc7?! { (-2.02 → -1.42) Inaccuracy. Ne7 was best. } (34... Ne7 35. Rb5 Nc6 36. h4 Nd4 37. Rb7 Kg6 38. Ba5 Kf5 39. Bb6 Ke5 40. Bc5 Kd5 41. Ba3) 35. Rb7? { (-1.42 → -2.62) Mistake. h4 was best. } (35. h4 h5 36. Rb7 Ne6 37. Bb4 Kg6 38. Ba3 f6 39. Kf1 Rd1+ 40. Kg2 Rb1 41. Kf3 Nd8) 35... Na6?! { (-2.62 → -1.61) Inaccuracy. Ne6 was best. } (35... Ne6 36. Rb5) 36. Rb6?? { (-1.61 → -3.58) Blunder. Rb5 was best. } (36. Rb5 Nc7) 36... Nc5 37. Rb5?! { (-4.10 → -6.15) Inaccuracy. Rb4 was best. } (37. Rb4 h5 38. h4 f6 39. Kh3 Kg6 40. Kg2 Kf7 41. Kh3 Ke6 42. Kg2 Kd5 43. Rb8 Na4) 37... Na4 38. Ba5 b2 { Black wins on time. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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